Reinforced concrete structure.



E. MOGULLGUGH. REINFORCED CONCRETE STRUCTURE.

APPLIOATION FILBD'ROV. 25.1908.

Patented s t, 14.-1909.

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munzw a. (11 mm 00.. Pamolhnounmmns. wAsnmemk. u. c.

E. MoGULLQUGH.

, 908. 934,089, Patented Sept. 14. 1909.

2 SHEETS-$111616? 2.

UNITE.

STATES PTENT FFTC .7

ERNEST McCULLOUGI-l, OF CHICAGO, ILLINOIS, ASSIGNOR T0 NORTHWESTERN EX-PANDED METAL COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

- REINFORCED CONCRETE STRUCTURE.

Specification of Letters Patent.

Patented Sept. 14, 1909.

Application filed November 25, 1908. Serial No. 464,385.

To all whom it may concern:

Be it known that I, ERNEST MoCULLoUGH, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Reinforced ConcreteStructures, of which the following is a specifloation.

This invention relates to improvements in reinforcing concretestructures and more particularly to web reinforcement for beams, slabsor the like and the primary object of the invention is to provide animproved strengthening web of this character constructed of reticulatedmaterial.

A further object is to provide an im proved web reinforcement forconcrete structures formed of a plurality of superposed sheets or stripsof reticulated material secured together in such a manner that theextremities of the sheets or strips may be bent or deflected at an angleto the body portions so as to extend transversely across the body of thebeam or slab to resist internal stresses.

A further object is to provide an improved reinforcing web which may beconstructed as a unit and collapsed for shipment purposes, and improvedmeans for guiding the user in bending or shaping the web for use.

A further object is to provide improved means for supporting andproperly positioning the web above the bottom of the mold or form inwhich the beam or slab is cast.

A further object is to provide improved means whereby tension rods maybe secured to the web when desired for reinforcing the same.

A further object is to provide an improved device of this characterwhich will be simple, durable, cheap and light in construotion, andeffective and eflicient in operation.

To the attainment of these ends and the accomplishment of other new anduseful objects, as will appear, the invention consists in the featuresof novelty in the construction, combination and arrangement of theseveral parts hereinafter more fully described and claimed and shown inthe accompanying drawings illustrating the embodiment of the invention,and in which Figure 1 is a perspective View of an improved structure ofthis character constructed in accordance with the principles of thisinvention and showing the beam or slab in diagram. Fig. 2 is a detailview of one unit in a collapsed form for shipment. Fig. 3 is an enlargeddetail sectional view on line 33 of Fig. 2. Fig. 4.- is a detailperspective View of the preferred form of reticulated material, fromwhich the reinforcing web is constructed showing a portion of the bodyof one of the strips, the angularly deflected end thereof and thehorizontally deflected extremity of the end. Fig. 5 is a diagrammaticView showing one manner of using this improved reinforcing web. Fig. 6shows a modified form of the invention.

Referring more particularly to the drawings and in the presentexemplification of the invention, the reinforcing web is constructed ofa plurality of superposed strips or sheets of reticulated material 10,11, 12, which maybe of any desired width but of varying lengths, so thatthe extremities of each sheet or strip will terminate short of theextremities of the next adjacent strips or sheets when the web iscollapsed. The respective ends 13, 14, 15 of these sheets of fabric maybe bent or deflected at any predetermined points and at angles to thebody portions of the respective sheets. These bent or deflected ends arepreferably disposed in planes inclined to the vertical and therespective extremities 16, 17., 18, of the inclined ends 13, 14, 15 aredeflected horizontally and in a direction preferably away from thelongitudinal center of the respective sheets. The extremities 13, 1 1,15 of the sheets are of such a length as to extend across the body ofthe beam to assist in tying together the top and bottom of the beam, andto resist internal stresses of the beam, and are of such lengths thatthe horizontally deflected extremities 16,17, 18, may stand at anypredetermined distance from one surface of the beam or slab according tothe thickness of bonding necessary. Any number of these strips or sheetsof reticulated material 10, 11 and 12 may be employed and in the presentexemplification of the invention three of such sheets are shown andthese strips or sheets may be connected or secured together to form areinforcing unit in any desired or suitable manner, preferably by meansof cooperating strips of material 19, 20, 21, one of which strips isarranged adjacent the bend formed by the respective ends 13, 14, 15 ofthe sheets and the cooperating strip being arranged below the respectivestripsand adjacent the face of the outermost strip 10. Thesestrips maybe secured together in any desired or suitable manner so as to formindependent clamps, preferably by means of a fastening device 22 in theform of a threaded bolt or: screw which is provided with a tapered orpointed extremity 23. Any number of these fastening devices 22' may beemployed for v each of the pairs of strips and are adapted to passthrough the cooperating strips and the adjacent portions of thesuperposed sheets of fabric 10, 11, 12. Suitable nuts 24, 25, may beprovided which surround the Y bolts 22, one adjacent each of therespective strips and are adapted to be adjusted on the bolt so as tocause the strips 21 to clamp the superposed sheets of reticulatedfabric. The bolts are of such a length as to extend for "some distancebeyond each of the clamping or fastening strips and may be adjusted withrespect to the superposed sheets of fab- 25 ric 10, 11, 12, bylooseningthe nuts 24, 25

so that the reduced or pointed extremity 23' of the bolts may beprojected any desired distance beyond the lowermost sheet of the fabric10. By adjusting the bolts 22 below,

the lowermost clamping member, it is pos sible to project all of thepointedor conical "form, thereby permitting the plastic mates rial whichforms the bottom or slab toentirely surround the reinforcing web as thematerial is poured into the mold;

With this improved construction it will be apparent that the clampingmembers 19,

1 20 'a'nd2l may be located at predetermined points so that when theunit isassembled, it may be shipped in a collapsed or folded conditionto the user. lVhen itis desired to use the structure allthat isnecessary is for the user to bend or deflect thee-xtremi-ties of therespective sheets of reticulated'material to the position shown in Fig.1, the clamping strips 19, 20 and 21 being securely held in position andbeing located at the points ad jacent which the bends ofthe material areto be made, thereby insuring the proper bending or shaping of thereinforced Web in the hand of an inexperienced person.

If desired, and in order to reinforce the beam or slab tension members,preferably'in I the form of metal bars or rods, may be employed, andthese tension members 27 may be interposed between the layers of fabricso that the extremities thereof will project through the deflectedportions l3of the ma; I i ermost layer. Any number of thesetension; r.

members 27 may be employed according to' the'width of the naterial fromwhich the beam or slab is constructed and may also :be of any desiredlength but are preferably of I such a length that when theextremities-"of?" the beam 28,; shown in dotted lines in'Figql,

rest upon thesupports29, the extremities'of f i the tensioirmemberswill'project over the supports; When thereinforeingweb is col-" lapsedor folded for shipment, the deflected 7 portions 13 of the-outermostmemberwill be bent to rest upon the extremities of the ten-- sionmembers 27, as shown more clearly; in Fig. 2 of the drawings. 7

Obviously, instead of sion members 271 between thegsheets of theinterposing the ten- 2 reticulated material, they may be disposedagainst the outer face of the outermost sheet, in whiche'vent they maybe secured in position in a similar manner with theeXcepQ tion thatthe-respective adjacent clamping strips will directly engage the tensionmembers. j V A plurality of the reinforcingwebunit-s thus formed maybeemployed for-constructi- 7 ing 'abeam of a length somewhat greater thanthe length of the unit to form a single span girder and in thisevent-the unitsmay be arranged opposed to each other so that the bottomor base of one unit'qwillystand'.

' adjacent one face of the gi'rder or beam and the bottom orbase ofanother unit may. stand adjacent the opposite face of'theg'irder orbeam,so that the vangularlyr-deflected;extremities 13, 14k, 15 will bedisposed between the adjacent angnlarlydeflected portions of the nextadjacent unit and thesendeflected Q .10.:

portions are spaced from each other asufiicient distance'to cause aspace to intervene between-two of the adjacent 'deflected portions topermit theplastic material 'to fill the spaces therebetween. r s

When the beam or girder is constructed in themanner shown in Fig. 5 andthetension rods or members 27 are employed, the flatter supports oruprights 29. One ofthe unitsli's also arranged to stand astride of-eachfof the uprights or supports soas-tofresist1'alLre are of such alengthias to project QVBlfthe j versed stresses of the beam or. girder.Inl this form of the invention and "whena plu -QQ I rality' of units areemployed, thej miay be 1 supported in the mold or-form in any dethefastening bolts 22'will engage the bottom of the mold for spacing theunitfrom; f the bottom to permit the plastic :m'at'eri-alto completelysurround the unitsj a'nd when thus completed, portions fo'f the unitswillbe disposed adjacent to and will extend parallel with thetop "andbottom o-f the-beamor girder to furnish a bond.

If desired, the reinforcing "web" mir h? constructed as a continuousunit, that is, so that the web will extend from one end of the girder orbeam to the other, as shown more clearly in the modification shown inFig. 6 of the drawings. When the reinforcing web is thus constructed,the sheets of reticulated material may be continuous and may be fastenedtogether at intervals by the cooperating clamping members 19, 20 and 21in the same manner as the single unit, the co-- operating clampingmembers being spaced longitudinally from each other to permit thesuperposed sheets of reticulated material to be angularly deflected, asat 30, 31, 32, at predetermined intervals to connect portions of the webwhich are disposed parallel to each other and spaced from each other anydesired distance according to the depth of the girder, beam or slab.These parallel portions are also spaced longitudinally from each otherwhereby the angularly disposed portions 30, 31, 32 will connect the saidparallel portions. In this exemplification of the invention, as well asin the form shown in Fig. 5, the tension rods 33 may be arrangedadjacent the portions of the reinforcing web which extend adjacent thelower face of the girder, beam or slab, the extremities of which extendover the supports or standards 29 and similar tension rods 34 may beemployed which are secured to the portions of the web which standadjacent the opposite face of the beam or girder and these tension rods34 may be of a length to terminate short of the next adjacent tensionrods but are arranged to extend across the uprights or standards 29 sothat their respective extremities will terminate at point-s between theuprights or standards. In this form of the invention the reinforcing webwill be constructed as a unit and will be shipped in shape ready for usebut in the other forms of the invention the reinforcing web may beshipped in a collapsed or folded form. Obviously the tension rods 33,34:, may be omitted when desired.

Although in the present exemplification of the invention the web isshown as being constructed of sheets of sheared or expanded material, itis to be understood that any suitable reticulated material, such assheared, woven or welded fabric may be employed and the sheets securedtogether so that the body portions thereof will be disposed in differenthorizontal planes.

In order that the invention might be fully understood the details of theforegoing embodiment thereof have been thus specifically described, but

What I claim as new, is:

1. A reinforcing web for concrete structures comprising a plurality ofsuperimposed members, and means for securing the bodies of said memberstogether, the extremities of the members being spaced from each other,the said securing means including a member adjustable with respect tothe first said members whereby the extremity of the adjustable fasteningmember may be projected a predetermined distance beyond the first saidmembers for supporting the web in a mold and for adjustment withrelation to the mold.

2. A reinforcing web for concrete structures comprising a plurality ofsuperimposed members, means for securing the bodies of said memberstogether, the extremities of the members being spaced from each other,the said securing means including a member adjustable with respect tothe first said members whereby the extremity of the adjustable fasteningmember may be projected a predetermined distance beyond the first saidmembers for supporting the web in a mold and for adjustment withrelation to the mold, and means for securing the said adjustable memberin its adjusted position.

3. A reinforcing web for concrete structures comprising a plurality ofsuperimposed members and means for securing the bodies of said memberstogether at points remote from their ends, the portions of the membersbeyond the securing means being separated from each other, the saidsecuring means including a member adjustable with respect to the firstsaid members whereby the extremity of the adjustable member may beprojected a predetermined distance beyond the first said members forsupporting the web in a mold and for adjustment with respect to themold.

st. A collapsible reinforcing web for concrete structures comprising aplurality of superposed reticulated sheets, means for securing saidsheets together, said securing means being disposed remote from therespective extremities of said sheets, the portion of the sheets beyondthe securing means being deflected to form portions disposed in planesinclined to the respective bodies of the sheets, said fastening meansalso serving as guides for deflecting the ends of the respective sheets,said fastening means including means projecting beyond and adjustablewith respect to the adjacent portions of the sheets for supporting theweb in a mold and adjusting the same with relation to the mold.

5. A reinforcing web for concrete structures comprising a plurality ofsuperposed reticulated sheets, cooperating clamping members engaging theoutermost sheets at intervals, fastening means engaging said clampingmembers and adjustable with re spect thereto, whereby the extremity ofsaid fastening means may be projected a predetermined distance beyondthe reticulated sheets for supporting the web in a mold,

portions of the sheets beyond the clamping members being bent intoplanes inclined to the respective body portions. I V

A' relnforcing Web for concrete structures comprising apluralityof'superposed' reticulated sheets, cooperating clamping members engagingthe outermost sheets at intervals, fasten ng means engaging sa dcla-mpinginembers and ad ustable with re spect thereto, whereby theextremity of said fastening means may be projected a predetermineddistance beyond the reticulated sheets forsupporting the Web in a mold,.portions of the sheets beyond the clamping meinbers'being bent'intoplanes inclined to the respective body portions, said deflected portionsbeing spaced longitudinally from each other.

"7. A reinforcing Webfor concrete struc =turescompr1s 1ng a plural ty ofsuperposed reticulated sheets, cooperating clamping members engaging theoutermost sheets at intervals, fastening -means engaging saidclampingmembers and adjustable with re 'spect thereto, whereby the extremity ofsaidfastening means may be projected a predetermined dlstanoe beyond theretlculated sheets for supporting the vveb in a mold, portions of thesheets'beyond the clamping members being bent into planes inclined tothe respective body portions, and means for .securing said fasteningmeans in their ad justed positions.

8. A reinforcing web for concrete structures 'comprising a plurality ofsuperposed sheets of material, portions of said sheets beingdefiected'to form a bodyhaving angularly deflected portions, saidangularly deflected portions "being spaced longitudinally from eachother, rods engaging the body portion and extending longitudinally thereof, the extremities of the rods projecting beyond theoutermost'defiected portiomand means for securing saidbody portions androds together. 7

9. A reinforcing Web for concrete structurescomprising a plurality ofsuperposed sheets of reticulated material, portions of said sheets-beingdeflected: to form a body.

having angularly deflected portions, said an gularly deflected portionsbeing spaced lon- 'gitudinally from each other, tension rods engagingthe body portion and extending longitudinally thereof, the extremitiesof the rods projecting beyond the outermost deflected portion, andcommonuneans for securing the tension rods andbo'dy'portions together toform a 'singl'eunit.

10. A reinforcing eb for-concrete striictures comprising apluralityof'superposed" sheets of reticulated material, each of said sheetsbeing-benttoform spaced parallel portions, the parallel portions of eachsheet a being respectively spaced longitudinally from each other, andthe respective adjacent parallel portions being connected -bYIrP9I' saidinclinedportions being spaced longitu- "dinally from eachother.

. 11.,A reinforcing web V tures comprising a plurality ofsuperposedsheets'of reticulated material, each of' said sheets being 'bent to formispaoedparallel for concrete :struc- V portions, the parallel portionsof each sheet being respectively spaced longitudinallyv from each other,and the respective adjacent parallel portionsbeingconnected by portionsof the sheets disposed in planes inclined to the planes of the saidparallel portions,

'means for engaging the sheets beyond the said inclined portions forsecuring the sheets together,-; and tension :rods secured -'to the 1 1sheets and projecting beyond'fth' Said clined portions.

12. A reinforcing sheets being bentto form spaced parallel portions, theparallelportions of each sheet wabfwbr c'ide'sdiibi tures comprising apluralityiroflsuperposed sheets of reticulated imaterial, each of saidbeing respectively spaced longitudinally V from each other, andtherespectiveadjaoent parallel portions being connected-by portions ,1

of the sheets "disposed in planes inclinedtoiv the planes of the saidparallel portions,-tension rods engaging thesheets and proj ecti'ng' 7'beyond the said inclined portions, and common means for securing-thesheets' and-rodsj' f together into a single unit.

Intestimony whereof- :I"-have'signedmy name to this specification, inthe presence of two subscribing. Witnesses, onthis 21st day of NovemberA. D.'1 9O8.

Witnesses: V

' J H. Joonnrr, J12,

M. WV, CANTWELL.

, ERNEST MGon LLoUen;

